Hydraulic support stand column test bed

Abstract

The utility model discloses a hydraulic support column test stand, which relates to the field of hydraulic support testing and comprises a bottom plate, columns are fixedly mounted at four corners of the upper end of the bottom plate, a movable pressing plate is slidably connected onto the columns, a plurality of groups of lifting cylinders are fixedly mounted on the bottom plate, and a fixing groove is formed in the movable pressing plate. According to the test device, the lifting air cylinder drives the movable pressing plate to achieve compression resistance test on the whole hydraulic support, meanwhile, through driving of a two-way motor in the movable test mechanism and cooperation of a gear and a rack, the compression resistance of the whole hydraulic support is improved, and the compression resistance of the whole hydraulic support is improved. The hydraulic support local compression test device drives the sliding plate to slide, adjusts the position of the extrusion plate, realizes the local compression test of the hydraulic support through the cooperation of the extrusion cylinder and the extrusion plate, fixes the movable pressing plate through the locking mechanism, ensures that the local compression test is kept stable, and improves the stability and accuracy of the test.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hydraulic support test, concretely relates to a hydraulic support stand column test board. BACKGROUND

[0002] Hydraulic support is the core support equipment of fully mechanized coal mining face, and its main function is to provide adjustable support force through the hydraulic system to ensure the stability of the working face and provide a safe space for coal mining operation and protect the safety of miners. The hydraulic support is mainly composed of a hydraulic cylinder, a support frame, an oil circuit system, a regulating valve and an operating system. By the extension and retraction of the hydraulic cylinder, the support can adjust its height and pressure to adapt to different geological conditions and working environments. The performance of the hydraulic support is closely related to the entire coal production process. The hydraulic support test board is a key detection equipment in the development and production process of the hydraulic support of the fully mechanized coal mining face, and is mainly used for testing and testing the technical performance and safety performance of the hydraulic support.

[0003] In the field of hydraulic support, the hydraulic support needs to be simulated after being manufactured. The current hydraulic support simulation experiment platform can test the overall compression resistance of the support, but it is not convenient to test the local compression resistance of the support. Therefore, the present scheme provides a hydraulic support stand column test board to solve the above problems. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, a hydraulic support stand column test board is provided, which solves the problems in the background technology.

[0005] In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:

[0006] A hydraulic support stand column test board, comprising a bottom plate, a stand column fixedly installed at the upper end of the bottom plate at four corners, a top plate fixedly connected to the top end of the stand column, a movable pressing plate slidingly connected to the stand column, a plurality of groups of lifting cylinders fixedly installed on the bottom plate for driving the movable pressing plate to slide, a fixed groove opened in the movable pressing plate, a movable testing mechanism arranged in the fixed groove, a mounting groove opened at the left and right ends of the movable pressing plate, a locking mechanism arranged in the mounting groove for fixing the position of the movable pressing plate, the movable testing mechanism comprising a sliding plate slidingly arranged in the fixed groove, a bidirectional motor fixedly installed on the sliding plate, a rack fixedly connected to the fixed groove arranged on the front and rear sides of the bidirectional motor, a mounting bracket fixedly installed on the sliding plate arranged on the lower side of the rack, a gear rotatably installed in the mounting bracket, the upper end of the gear being meshingly connected with the lower end of the rack, and the gear being fixedly connected with the two output shafts of the bidirectional motor, a plurality of groups of extrusion cylinders fixedly installed on the sliding plate arranged on one side of the bidirectional motor, and an extrusion plate fixedly connected to the output shaft of the extrusion cylinder.

[0007] Preferably, the inner part of the fixed groove is provided with a sliding groove for matching the sliding of the sliding plate, and the bottom of the fixed groove is provided with a receiving groove for receiving the extrusion plate.

[0008] Preferably, the inner part of the mounting groove is fixedly provided with two groups of supports which are identical in structure and symmetrically arranged, and the inner part of each group of supports is slidably connected with a locking mechanism.

[0009] Preferably, the locking mechanism comprises two sliding rods which are slidably connected in the inner part of the two supports respectively, a fixed plate is fixedly connected on the sliding rod, a spring is fixedly connected between the fixed plate and the support, the spring is sleeved on the surface of the sliding rod, a spherical plug is fixedly connected on the end of the sliding rod close to the stand, a plurality of spherical insertion grooves for matching the spherical plug are formed on the stand, and the end of the two sliding rods away from each other is provided with a locking piece.

[0010] Preferably, the locking piece comprises a locking block arranged between the two sliding rods, the upper end of the locking block is solid, the lower end of the locking block is provided with a through groove, a locking cylinder is fixedly installed on the movable pressing plate and arranged on the upper side of the locking block, the output shaft of the locking cylinder is fixedly connected with the upper end of the locking block, a limiting plate is fixedly connected on the bottom of the locking block, and a slot is formed on the movable pressing plate for matching the sliding of the limiting plate.

[0011] Preferably, a maintenance door is rotatably installed on the movable pressing plate outside the mounting groove.

[0012] Preferably, a slot is formed on the top plate, and a plurality of anti-collision plates are fixedly connected on the lower end of the top plate.

[0013] Compared with the prior art, the hydraulic support stand column test bench has the following beneficial effects:

[0014] 1. In the utility model, the movable pressing plate is driven to slide on the stand column by the plurality of lifting cylinders, the compression test of the whole hydraulic support is realized by the lifting of the movable pressing plate, meanwhile, the two gears on the two sides are driven to rotate by the driving of the bidirectional motor in the movable test mechanism, the gears are engaged with the fixed rack, so that the gears slide in the inner part of the fixed groove under the action of the rack, thereby adjusting the position of the extrusion plate, after the position is adjusted, the pressing plate is driven downward to perform the compression test on the support under the driving of the extrusion cylinder, and the compression test on the local part of the hydraulic support is realized.

[0015] 2. The utility model discloses a locking mechanism is provided with, when need to carry out local test, need to move the moving pressing plate, drive through the locking cylinder in locking mechanism, go up the locking block, make the through groove on the locking block be located between two slide rods, and then remove the fixing between moving pressing plate and stand, under the drive of lifting cylinder, moving pressing plate moves on the stand, can give the space of spherical plug and slide rod through the through groove, and then make spherical plug be extruded out of the spherical insert groove, when moving to the predetermined position, spherical plug is inserted into the new spherical insert groove under the action of spring, and down the locking block is moved to the locking block through locking cylinder, make the solid end of locking block be located between two slide rods, and be pasted with two slide rods, thereby make moving pressing plate and stand fixed, thereby make the overall stability when carrying out local compression resistance test subsequently, improve the stability and accuracy of test. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic diagram of the utility model;

[0017] Figure 2 It is the structure schematic diagram of the utility model middle mobile test mechanism;

[0018] Figure 3 It is the structure sectional view of the utility model middle mobile test mechanism;

[0019] Figure 4 It is the structure schematic diagram of the utility model middle locking mechanism.

[0020] The figure mark is:

[0021] 1, bottom plate, 2, stand, 201, spherical insert groove, 3, lifting cylinder, 4, top plate, 401, slot, 5, moving pressing plate, 501, fixed groove, 502, sliding groove, 503, storage groove, 504, installation groove, 505, support, 6, mobile test mechanism, 601, sliding plate, 602, two-way motor, 603, rack, 604, gear, 605, mounting bracket, 606, extrusion cylinder, 607, extrusion plate, 7, locking mechanism, 701, locking cylinder, 702, locking block, 703, through groove, 704, limit board, 705, slide rod, 706, spherical plug, 707, fixed plate, 708, spring, 8, access door, 9, anti-collision plate. DETAILED DESCRIPTION

[0022] The following description is used to disclose the utility model to enable the person skilled in the art to realize the utility model. The preferred embodiment in the following description is only as an example, and other obvious variants can be thought of by the person skilled in the art.

[0023] Reference Figures 1-4As shown, a hydraulic support column test bench, including the base plate 1, the base plate 1 upper end four corners are evenly fixedly installed with the column 2, the top end of the column 2 is fixedly connected with the top plate 4, the column 2 is slidably connected with the moving pressure plate 5, the base plate 1 is fixedly installed with several groups of lifting cylinders 3 for driving the moving pressure plate 5 to slide, the moving pressure plate 5 is provided with a fixed groove 501, the inside of the fixed groove 501 is provided with a moving test mechanism 6, the left and right ends of the moving pressure plate 5 are provided with installation grooves 504, and the installation grooves 504 are provided with locking mechanisms 7 for fixing the position of the moving pressure plate 5;

[0024] Further: the hydraulic support is placed on the test bench, the moving pressure plate 5 is driven to slide on the column 2 by the several groups of lifting cylinders 3, and the overall compression resistance test of the hydraulic support is realized by the lifting of the moving pressure plate 5, at the same time, the position of the extrusion plate 607 is adjusted by the moving test mechanism 6, after the position is adjusted, the position of the moving pressure plate 5 is fixed on the column 2 by the locking mechanism 7, then the extrusion plate 607 is driven downward by the extrusion cylinder 606 in the moving test mechanism 6 to test the compression resistance of the support, and the local compression resistance test of the hydraulic support is realized.

[0025] Specifically, in the embodiment, the moving test mechanism 6 includes a sliding plate 601 slidably arranged in the fixed groove 501, a bidirectional motor 602 is fixedly installed on the sliding plate 601, toothed racks 603 are fixedly connected to the fixed groove 501 on the front and rear sides of the bidirectional motor 602, mounting frames 605 are fixedly installed on the sliding plate 601 on the lower sides of the toothed racks 603, gear wheels 604 are rotatably installed in the mounting frames 605, the upper ends of the gear wheels 604 are meshingly connected with the lower ends of the toothed racks 603, the gear wheels 604 are fixedly connected with the two output shafts of the bidirectional motor 602, a plurality of extrusion cylinders 606 are fixedly installed on the sliding plate 601 on one side of the bidirectional motor 602, and extrusion plates 607 are fixedly connected to the output shafts of the extrusion cylinders 606.

[0026] Further: the moving test mechanism 6 is driven by the bidirectional motor 602, the gear wheels 604 on the left and right sides are synchronously driven to rotate by the bidirectional motor 602, the gear wheels 604 are meshed with the toothed racks 603 fixedly arranged on the upper sides of the gear wheels 604, so that the gear wheels 604 drive the sliding plate 601 to slide in the fixed groove 501 under the meshing action of the toothed racks 603, the sliding plate 601 further drives the extrusion cylinders 606 and the extrusion plates 607 on the surface of the sliding plate 601 to move, thereby adjusting the position of the extrusion plates 607, after the position is adjusted, the extrusion plates 607 are driven downward by the extrusion cylinders 606 to test the compression resistance of the support, and the local compression resistance test of the hydraulic support is realized.

[0027] Specifically, in the embodiment, the inner part of the fixing groove 501 is provided with a sliding groove 502 for matching the sliding of the sliding plate 601, and the bottom of the fixing groove 501 is provided with a receiving groove 503 for receiving the extrusion plate 607.

[0028] Further, the receiving groove 503 can receive the extrusion plate 607, and after being received, the extrusion plate 607 is located in the inner part of the fixing groove 501, so that when the moving pressure plate 5 is used to perform the compression test on the whole hydraulic support, the extrusion plate 607 is prevented from contacting the hydraulic support, and the probability of damage to the extrusion cylinder 606 is reduced.

[0029] Specifically, in the embodiment, the inner part of the mounting groove 504 is fixedly mounted with two groups of supports 505, the two groups of supports 505 are the same in structure and are symmetrically arranged, and the inner parts of the two groups of supports 505 are both slidably connected with a locking mechanism 7.

[0030] Specifically, in the embodiment, the locking mechanism 7 includes two sliding rods 705 which are slidably connected in the inner parts of the two supports 505, respectively, a fixed plate 707 is fixedly connected on the sliding rod 705, a spring 708 is fixedly connected between the fixed plate 707 and the support 505, the spring 708 is sleeved on the surface of the sliding rod 705, a spherical plug 706 is fixedly connected on one end of each of the two sliding rods 705 which is close to the stand column 2, a plurality of groups of spherical insertion grooves 201 are formed on the stand column 2 for matching the spherical plug 706, and a locking piece is arranged on the end of each of the two sliding rods 705 which faces each other.

[0031] Specifically, in the embodiment, the locking piece includes a locking block 702 which is arranged between the two sliding rods 705, the upper end of the locking block 702 is solid, the lower end of the locking block 702 is provided with a through groove 703, the upper side of the locking block 702 is provided with a locking cylinder 701 which is fixedly mounted on the moving pressure plate 5, the output shaft of the locking cylinder 701 is fixedly connected with the upper end of the locking block 702, the bottom of the locking block 702 is fixedly connected with a limiting plate 704, and the moving pressure plate 5 is provided with a slot for matching the sliding of the limiting plate 704.

[0032] Further, when local testing is needed, the mobile pressing plate 5 needs to be moved, the locking part in the locking mechanism 7 is started, the locking part is driven by the locking cylinder 701, the locking block 702 is moved upwards, the through slot 703 on the locking block 702 is located between the two sliding rods 705, and then the fixing between the mobile pressing plate 5 and the stand column 0 is released, then the mobile pressing plate 5 is moved on the stand column 2 under the drive of the lifting cylinder 3, the through slot 703 can give the ball-shaped plug block 706 and the sliding rod 705 a moving space, and then the ball-shaped plug block 706 is extruded out of the ball-shaped plug slot 201, when being moved to the predetermined position, the ball-shaped plug block 706 is inserted into a new ball-shaped plug slot 201 under the action of the spring 708, and the locking block 702 is driven downwards by the locking cylinder 701 in the locking part, so that the solid end of the locking block 702 is located between the two sliding rods 705 and is attached to the two sliding rods 705, the two sliding rods 705 are limited, and then the mobile pressing plate 5 and the stand column 2 are fixed, so that the subsequent local compression resistance test is stable, and the stability and accuracy of the test are improved.

[0033] Specifically, in the embodiment, the outer side of the installation groove 504 is provided with an inspection door 8 rotatably installed on the mobile pressing plate 5.

[0034] Specifically, in the embodiment, the top plate 4 is provided with a slot 401, and the lower end of the top plate 4 is fixedly connected with a plurality of groups of anti-collision plates 9.

[0035] Further, the slot 401 is used for protecting the locking cylinder 701 from colliding with the top plate 4, the anti-collision plate 9 has a certain height, and the height is higher than that of the extrusion cylinder 607, so as to protect the extrusion cylinder 607 and avoid the collision between the extrusion cylinder 607 and the top plate 4.

[0036] The working principle of the utility model is: the hydraulic support is placed on the experiment table, the mobile pressing plate 5 is driven to slide on the stand column 2 by the plurality of groups of lifting cylinders 3, and the compression resistance test of the whole hydraulic support is realized by the lifting of the mobile pressing plate 5.

[0037] Subsequently, the position of the extrusion plate 607 is adjusted by the moving test mechanism 6 to carry out the local compression resistance test, when the local test is required, the moving pressure plate 5 needs to be moved, the locking part in the locking mechanism 7 is started, the locking part is driven by the locking cylinder 701, the locking block 702 is moved upwards, the through slot 703 on the locking block 702 is located between the two sliding rods 705, and then the fixing between the moving pressure plate 5 and the stand column 0 is released, then the moving pressure plate 5 is moved on the stand column 2 under the driving of the lifting cylinder 3, the space for the movement of the spherical plug 706 and the sliding rod 705 can be given through the through slot 703, and then the spherical plug 706 is extruded out of the spherical plug slot 201, when moving to the predetermined position, the spherical plug 706 is inserted into the new spherical plug slot 201 again under the action of the spring 708, and the locking block 702 is driven downwards by the locking cylinder 701 in the locking part, so that the solid end of the locking block 702 is located between the two sliding rods 705 and is attached to the two sliding rods 705, the two sliding rods 705 are limited, so that the moving pressure plate 5 and the stand column 2 are fixed, so that the subsequent local compression resistance test is stable, and the stability and accuracy of the test are improved.

[0038] When the position of the moving pressure plate 5 on the stand column 2 is fixed, the double-way motor 602 is driven, the double-way motor 602 synchronously drives the two gears 604 on the sides to rotate, the gears 604 are engaged with the rack 603 fixed on the upper side, so that the gears 604 drive the sliding plate 601 to slide in the fixed slot 501 under the engagement of the rack 603, the sliding plate 601 drives the extrusion cylinder 606 and the extrusion plate 607 on the surface to move, and then the position of the extrusion plate 607 is adjusted, when the position is adjusted, the extrusion plate 607 is driven downwards to the support for compression resistance test under the driving of the extrusion cylinder 606, and the local compression resistance test of the hydraulic support is realized.

[0039] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the industry that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic support stand column test bench, characterized in that, The utility model relates to a movable test mechanism of movable pressing plate, including bottom plate (1), the bottom plate (1) upper end four corners all fixedly installed have riser (2), the top of riser (2) all fixedly connected with roof (4), the movable pressing plate (5) of sliding connection has on riser (2), the bottom plate (1) fixedly installed have several groups for driving movable pressing plate (5) sliding lift cylinder (3), the fixed groove (501) of being seted up has on movable pressing plate (5), the inside of fixed groove (501) is provided with movable test mechanism (6), the left and right ends of movable pressing plate (5) all are seted up with installation groove (504), the installation groove (504) is provided with locking mechanism (7) for fixing movable pressing plate (5) position, movable test mechanism (6) includes the sliding plate (601) of sliding in fixed groove (501), the two -way motor (602) of fixed installation is installed on sliding plate (601), the front and back both sides of two -way motor (602) all are provided with the rack (603) of fixed connection in fixed groove (501), the lower side of rack (603) all are provided with the mounting bracket (605) of fixed installation in sliding plate (601), the mounting bracket (605) rotatable mounting has the gear (604), the upper end of gear (604) and the lower end of rack (603) meshing connection, and gear (604) respectively with two output shafts of two -way motor (602) fixed connection, one side of two -way motor (602) is provided with several groups fixed installation extrusion cylinder (606) in sliding plate (601), the output shaft of extrusion cylinder (606) all are fixedly connected with extrusion plate (607).

2. The hydraulic support stand column test bench according to claim 1, characterized in that: The inside of fixed groove (501) is seted up with the sliding slot (502) for cooperation sliding plate (601) sliding, the bottom of fixed groove (501) is seted up with the storage groove (503) for receiving extrusion plate (607).

3. The hydraulic support leg test bench according to claim 1, characterized in that: The inside fixed installation of installation groove (504) has two groups of supports (505), two groups the support (505) same and symmetric setting, and the inside of two groups the support (505) all slidingly connect with locking mechanism (7).

4. The hydraulic support leg test bench according to claim 3, characterized in that: The locking mechanism (7) includes two sliding rods (705) that are slidingly connected in the interiors of the two supports (505), respectively, a fixed plate (707) is fixedly connected to the sliding rod (705), a spring (708) is fixedly connected between the fixed plate (707) and the support (505), the spring (708) is sleeved on the surface of the sliding rod (705), a spherical plug (706) is fixedly connected to one end of each of the two sliding rods (705) that is closer to the riser (2), a plurality of spherical insertion grooves (201) are formed in the riser (2) for cooperating with the spherical plug (706), and a locking member is arranged at the ends of the two sliding rods (705) that face each other.

5. The hydraulic support leg test bench according to claim 4, characterized in that: The locking piece comprises a locking block (702) arranged between two sliding rods (705), the upper end of the locking block (702) is solid, the lower end of the locking block (702) is provided with a through groove (703), the upper side of the locking block (702) is provided with a locking cylinder (701) fixedly installed on a movable pressing plate (5), the output shaft of the locking cylinder (701) is fixedly connected with the upper end of the locking block (702), the bottom of the locking block (702) is fixedly connected with a limiting plate (704), and the movable pressing plate (5) is provided with a slot for matching the sliding of the limiting plate (704).

6. The hydraulic support leg test bench according to claim 1, characterized in that: The outer side of the mounting groove (504) is provided with an access door (8) rotatably installed on the movable pressing plate (5).

7. The hydraulic support leg test bench according to claim 1, characterized in that: The top plate (4) is provided with a slot (401), and the lower end of the top plate (4) is fixedly connected with a plurality of groups of anti-collision plates (9).

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